GB550255A - Improvements in and relating to dynamo electric machines - Google Patents
Improvements in and relating to dynamo electric machinesInfo
- Publication number
- GB550255A GB550255A GB823141A GB823141A GB550255A GB 550255 A GB550255 A GB 550255A GB 823141 A GB823141 A GB 823141A GB 823141 A GB823141 A GB 823141A GB 550255 A GB550255 A GB 550255A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- slots
- pitch
- double
- wound round
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
Abstract
550,255. Inductor-alternators. BRITISH THOMSON-HOUSTON CO., Ltd., and BARWICK, E. C. June 30, 1941, No. 8231. [Class 35] A heteropolar inductor alternator has at least one generating coil whose sides lie in excitation fields having opposite directions. It is shown that this results in a saving in coils required for a given output voltage and leaves slots for the exciting coils entirely free so that the exciting turns can be increased. In one form a generating coil 1, Fig. 2 (Prov.), is wound round two armature slots so as to bridge oppositely excited poles 2 ; the remaining coils are wound round alternate slots. If the winding is of the kind with coils wound round each slot and reversely connected, a double-pitch coil occurs at each end of a pole. If the number of slots per pole is reduced to two, the windings will be entirely double-pitch coils, as shown in Fig. 2. In these examples the slots are twice the number of rotor teeth. The ratio of slot to tooth pitch may be non-integral so that the long coils are not exactly double the pitch of the short ones; Fig. 3 shows a twophase modification with 1 6/7 slots per pole per phase, in which the long coils are 1¥ times the pitch of the short ones. The slots containing the exciting coils are indicated by dotted lines 3. The separate phases are shown in full and dotted lines and the rotor teeth are indicated at 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB823141A GB550255A (en) | 1941-06-30 | 1941-06-30 | Improvements in and relating to dynamo electric machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB823141A GB550255A (en) | 1941-06-30 | 1941-06-30 | Improvements in and relating to dynamo electric machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB550255A true GB550255A (en) | 1942-12-31 |
Family
ID=9848478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB823141A Expired GB550255A (en) | 1941-06-30 | 1941-06-30 | Improvements in and relating to dynamo electric machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB550255A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019218115A1 (en) * | 2019-11-25 | 2021-05-27 | Robert Bosch Gmbh | Machine component for an electrical machine |
-
1941
- 1941-06-30 GB GB823141A patent/GB550255A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019218115A1 (en) * | 2019-11-25 | 2021-05-27 | Robert Bosch Gmbh | Machine component for an electrical machine |
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